The effect of different deformation-aging treatments on the stress corrosion cracking of LY12 aluminum alloy was studied.

本文研究了不同的形变时效处理对LY 12铝合金应力腐蚀开裂性能的影响。

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Results show that the alloy in aging state, especially in deformation-aging state, is apparently susceptible to hydrogen embrittlement.

结果表明，时效状态、特别是形变时效状态合金具有明显的氢脆敏感性。

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The deformation before aging can increase the defect's quantity in the alloy, and accelerate the precipitating of the second phase.

而时效前冷变形可以增加合金内部位错等缺陷的数量，加速了合金第二相的析出。

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